Improvement in engine-hose



. UNITED STATES PATENT OFFIC CHARLES LENZMANN, or BROOKLYN, NEW YORK.

IMPROVEMENT IN ENGINE-HOSE.

Specification forming part of Letters Patent No. 22,296, dated December 14, 1858.

To all whom it may concern.-

Be it known that I, OHARLEs LENZMANN, of the city of Brooklyn, county of Kings, and State of New York, have invented a new and useful article of manufacture-viz. an enginehose, to be used for the purpose of conducting water under pressure to and from fireengines, force-pumps, hydrants, and for other purposes; and I do hereby declare that the following is a full and exact description of my invention and the method of manufacture.

My hose consists of a seamless tubular web woven in a peculiar manner, to be hereinafter more fully described, of the best and strongest hemp, thoroughly saturated and covered with a composition of matter, of which linseed-oil and umber are the principal ingredients, with theladdition of a proportion of yellow ocher or a similar pigment for the purpose of producing a more agreeable color. The web I use is peculiar in the following respects-via, first, it is woven of the required diameter, seamless, and in pieces of sufficient length to permit of making ordinary hoselengths without joints 5 second, the filling, which is woven in transversely in spiral circles, is of threads of much larger diameter than the warp-threads, and is composed of one yarn rather loosely twisted up from a number of firm threads of long fiber; third, the filling is covered by the warp-threads which form both sides, pass alternately over and under the filling, two threads together, and laid as close as they can be worked, the filling being driven up very hard. The warp-threads are also jammed together sidewise as tight as pos i ible, yet presenting a comparatively flat surace.

The composition I use is composed of linseed-oil, umber, and yellow ocher in the following proportions, viz.: linseed-oil, one gallon; umber, seven pounds; yellow ocher, four pounds, mixed together cold or slightly heated. The proportions of ocher-may be varied if a different shade of color is desired. The umber being a brown peroxide of iron, and

' the ocher a hydrated peroxide of iron, contain nothing injurious to the fiber of the hemp, and if any other pigment be substituted for the ocher care must be taken that it does not contain lime or other substance injurious to the fiber of the hemp.

To saturate and cover the hose I pour inside the hose, which I first prepare, as above,

in suitable lengthssay fifty to one hundred feet-a quantity of the composition, and by a strong pressure on the outside force the composition into the fibers and interstices of the web until it is thoroughly filled up and saturated. I then introduce into the hose a tightly-fitting swab saturated with the composition, and pass it several times backward and forward through the hose for the purpose of completing the saturation and of coating smoothly and evenly the inside surface. I then cover the outside by laying the composition on with a brush and hang it in the air tovdry. When dry, I give it another coat, and when that is dry the hose is fit for use. The drying occupies about three weeks, and must not be hurried, The hose thus made is substantially water-proof under heavy pressure. It is a cheap and excellent substitute for leather hose, and possesses advantages over leather for that purpose. It is much lighter, it does not become water-soaked, and consequently is not so apt to freeze in winter, and it does not require slushing to keep it pliable. Neither does it require the same care in drying after use, as the water runs off from the surface immediately. It is not affected injuriously by the grease and oil used in the working parts of engines and pumps, and is therefore superior to rubber'or tarred hose.

Having described my invention and the method of manufacture, I will now state what I claim as new and desire to secure by Letters Patent of the United States- The hempen hose, woven, saturated, and covered, as hereinbefore described.

CHARLES LENZMANN. Witnesses:

JAMES P. Roenns, JAooB K. LOOKMAN. 

